KYB SR4593 Suspension Strut and Coil Spring Assembly - Rear

KYB Strut-Plus Rear Suspension Assembly

The KYB Strut-Plus SR4593 is a rear suspension strut and coil spring assembly for select Subaru Legacy models. Built to restore ride height, handling response, and vehicle stability, it combines OE-style engineering with application-specific damping and spring design.

Compatible with 2005-2009 Subaru Legacy rear suspension service, this assembly is assembled in the USA and engineered for exact fitment on the intended side and position. The SR4593 is a practical choice when replacing a worn rear strut and spring assembly on a Subaru Legacy.

Key Features

• OE-style replacement for Asian vehicles
• Includes a KYB Excel-G strut with application-specific precision damping valves
• Stronger steel outer shell for added structural support
• High-carbon steel coil spring designed around vehicle corner weights and ride height targets
• Pre-assembled for professional installation results
• Side-specific design and components built as the vehicle manufacturer intended
• Engineered to support vehicles equipped with electronic safety systems such as ESC and ABS
• Recipient of a 2018 industry award in the import aftermarket category

Product Line Details

KYB Strut-Plus is a complete suspension strut and coil spring assembly line focused on restoring original ride characteristics. For the Subaru Legacy, the SR4593 combines KYB’s OE-restoring strut design with a matched spring to help return the rear suspension to factory-style height and control.

Detailed Description

KYB designs the Strut-Plus SR4593 as a direct replacement for the rear suspension strut and coil spring assembly on 2005-2009 Subaru Legacy models. As an original equipment supplier, KYB applies OE-based engineering to help restore handling balance, steering response, and ride control after the original assembly has worn out. The matched spring and strut are selected to support proper ride height and consistent damping performance for the rear of the vehicle. This part number, SR4593, is built for exact fitment and side-specific installation on the rear position.

This part cross-references Monroe Shocks & Struts 172501 for the same application.

What It Helps Address

• Rear-end sag or reduced ride height
• Excessive bouncing after bumps
• Loose or unstable rear suspension feel
• Uneven damping from a worn strut assembly
• Restoration of factory-style handling on a Subaru Legacy

Installation Notes and Tips

Fits 2005-2009 Subaru Legacy, rear. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify side and position before installation, and confirm that the replacement assembly matches the vehicle’s rear application. The pre-assembled design supports professional service procedures and helps reduce assembly time compared with rebuilding components individually.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus SR4593 is engineered to restore OE-style ride height, handling, and control for the rear suspension of the Subaru Legacy. The assembly is built with application-specific damping and spring specifications to align with the vehicle’s original suspension requirements.